Hello everyone, I'm considering switching to Ubuntu. But I'm not sure if it suits my work needs. I will summarize my questions in points: I use MS Word for my writings, I need full equation editor, does Open Office provide that? I use some table method in MS Word to number my equations there, can I do that in Open Office? (The method is described here) I'm using Excel for curve fitting, and also (which is very important) find an equation for the curve generated, Excel can offer linear, logarithmic, polynomial up to the 6th degree and other kinds of regression. Is that available in Open Office or any other program that works on Ubuntu? I'm also going to need Matlab, Mathematica or similar programs. Is there a version of such programs that works on Ubuntu? But free of course! Those are my concerns about switching to Ubuntu, I actually want to but I need to know if it fits my work or not, so I hope someone would help me answer these questions. Thank you in advance.